605b42f92c
Kernel audio drivers can be categorised into below folders. asoc - ALSA based drivers, asoc/codecs - codec drivers, ipc - APR IPC communication drivers, dsp - DSP low level drivers/Audio ION/ADSP Loader, dsp/codecs - Native encoders and decoders, soc - SoC based drivers(pinctrl/regmap/soundwire) Restructure drivers to above folder format. Include directories also follow above format. Change-Id: I8fa0857baaacd47db126fb5c1f1f5ed7e886dbc0 Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
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* Copyright (C) 2008 Google, Inc.
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* Copyright (C) 2008 HTC Corporation
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* Copyright (c) 2012-2017 The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can find it at http://www.fsf.org.
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*/
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#ifndef _MSM_PCM_H
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#define _MSM_PCM_H
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#include <dsp/apr_audio-v2.h>
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#include <dsp/q6asm-v2.h>
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/* Support unconventional sample rates 12000, 24000 as well */
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#define USE_RATE \
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(SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT)
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extern int copy_count;
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struct buffer {
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void *data;
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unsigned int size;
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unsigned int used;
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unsigned int addr;
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};
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struct buffer_rec {
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void *data;
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unsigned int size;
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unsigned int read;
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unsigned int addr;
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};
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struct audio_locks {
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spinlock_t event_lock;
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wait_queue_head_t read_wait;
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wait_queue_head_t write_wait;
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wait_queue_head_t eos_wait;
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wait_queue_head_t enable_wait;
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wait_queue_head_t flush_wait;
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};
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struct msm_audio_in_frame_info {
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uint32_t size;
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uint32_t offset;
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};
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#define PLAYBACK_MIN_NUM_PERIODS 2
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#define PLAYBACK_MAX_NUM_PERIODS 8
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#define PLAYBACK_MAX_PERIOD_SIZE 122880
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#define PLAYBACK_MIN_PERIOD_SIZE 128
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#define CAPTURE_MIN_NUM_PERIODS 2
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#define CAPTURE_MAX_NUM_PERIODS 8
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#define CAPTURE_MAX_PERIOD_SIZE 122880
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#define CAPTURE_MIN_PERIOD_SIZE 320
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struct msm_audio {
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struct snd_pcm_substream *substream;
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unsigned int pcm_size;
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unsigned int pcm_count;
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unsigned int pcm_irq_pos; /* IRQ position */
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uint16_t source; /* Encoding source bit mask */
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struct audio_client *audio_client;
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uint16_t session_id;
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uint32_t samp_rate;
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uint32_t channel_mode;
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uint32_t dsp_cnt;
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int abort; /* set when error, like sample rate mismatch */
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bool reset_event;
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int enabled;
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int close_ack;
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int cmd_ack;
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/*
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* cmd_ack doesn't tell if paticular command has been sent so can't
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* determine if it needs to wait for completion.
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* Use cmd_pending instead when checking whether a command is been
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* sent or not.
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*/
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unsigned long cmd_pending;
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atomic_t start;
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atomic_t stop;
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atomic_t out_count;
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atomic_t in_count;
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atomic_t out_needed;
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atomic_t eos;
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int out_head;
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int periods;
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int mmap_flag;
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atomic_t pending_buffer;
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bool set_channel_map;
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char channel_map[8];
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int cmd_interrupt;
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bool meta_data_mode;
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uint32_t volume;
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bool compress_enable;
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/* array of frame info */
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struct msm_audio_in_frame_info in_frame_info[CAPTURE_MAX_NUM_PERIODS];
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};
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struct output_meta_data_st {
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uint32_t meta_data_length;
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uint32_t frame_size;
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uint32_t timestamp_lsw;
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uint32_t timestamp_msw;
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uint32_t reserved[12];
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};
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struct msm_plat_data {
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int perf_mode;
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struct snd_pcm *pcm;
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};
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#endif /*_MSM_PCM_H*/
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